ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
89 lines
2.2 KiB
Markdown
89 lines
2.2 KiB
Markdown
---
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id: 587d7daa367417b2b2512b6b
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title: 使用 split 方法将字符串拆分成数组
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challengeType: 1
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forumTopicId: 18305
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dashedName: split-a-string-into-an-array-using-the-split-method
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---
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# --description--
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`split`方法用于把字符串分割成字符串数组，接收一个分隔符参数，分隔符可以是用于分解字符串或正则表达式的字符。举个例子，如果分隔符是空格，你会得到一个单词数组；如果分隔符是空字符串，你会得到一个由字符串中每个字符组成的数组。
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下面是两个用空格分隔一个字符串的例子，另一个是用数字的正则表达式分隔：
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```js
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var str = "Hello World";
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var bySpace = str.split(" ");
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// Sets bySpace to ["Hello", "World"]
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var otherString = "How9are7you2today";
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var byDigits = otherString.split(/\d/);
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// Sets byDigits to ["How", "are", "you", "today"]
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```
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因为字符串是固定的，`split`方法可以更简单的操作它们。
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# --instructions--
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在`splitify`函数中用`split`方法将`str`分割成单词数组，这个方法应该返回一个数组。单词不一定都是用空格分隔，所以数组中不应包含标点符号。
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# --hints--
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应该使用`split`方法。
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```js
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assert(code.match(/\.split/g));
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```
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`splitify('Hello World,I-am code')`应返回`['Hello', 'World', 'I', 'am', 'code']`。
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```js
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assert(
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JSON.stringify(splitify('Hello World,I-am code')) ===
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JSON.stringify(['Hello', 'World', 'I', 'am', 'code'])
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);
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```
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`splitify('Earth-is-our home')`应返回`['Earth', 'is', 'our', 'home']`。
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```js
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assert(
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JSON.stringify(splitify('Earth-is-our home')) ===
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JSON.stringify(['Earth', 'is', 'our', 'home'])
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);
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```
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`splitify('This.is.a-sentence')`应返回`['This', 'is', 'a', 'sentence']`。
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```js
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assert(
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JSON.stringify(splitify('This.is.a-sentence')) ===
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JSON.stringify(['This', 'is', 'a', 'sentence'])
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);
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```
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# --seed--
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## --seed-contents--
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```js
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function splitify(str) {
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// Only change code below this line
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// Only change code above this line
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}
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splitify("Hello World,I-am code");
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```
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# --solutions--
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```js
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function splitify(str) {
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// Only change code below this line
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return str.split(/\W/);
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// Only change code above this line
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}
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```
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